Sometimes we feel that our parents should plan our retirement also but that is not always the case because most of our parents do not have that opportunity to spend or plan for our retirement or our building office.
They spend their productive years paying school fees, feeding children, building houses, trying to start up businesses is for themselves. Parents, utilities and keeping the family alive. But yes, children shouldn't be their parents retirement plan but let's not protect the system.
Give most parents a great retirement plan either. You don't expect your parents to invest in you and they will not expect anything from you at their own age when they could not work for themselves.
We just have to work hard so that we can help our parents in any way we could. I would cry our best to always be there for them.